Mike's Workshop Manuals: Service manuals for every vehicle
Home >> Chevrolet >> 2008 >> Uplander Base, 3.9 1 >> Repair and Diagnosis >> Accessories & Equipment >> Entertainment Systems >> Cellular System, Entertainment System, And Navigation System >> Diagnostic Information and Procedures >> DTC B2462 >> Circuit/System Testing

Circuit/System Testing

  1. Ignition OFF, disconnect the GPS coaxial cable from the GPS antenna.
  2. Ignition ON, test for 4.0-5.5 volts between the center conductor and the shield of the coaxial cable.
    • If not within the specified range, replace the GPS antenna.
  3. Ignition OFF, test for less than 5 ohms or resistance at the GPS coaxial cable center conductor from end to end.
    • If greater than the specified range, replace the GPS coaxial cable.
  4. Ignition OFF, test for infinite resistance between the center conductor and the outer conductor of the GPS coaxial cable.
    • If less than the specified range, replace the GPS coaxial cable.
  5. If all circuits test normal, replace the radio.
scientia non olet · About Mike's Workshop Manuals